Apparatus for treating paraffin-wax.



A.- CAMPBELL. APPARATUS FOR TREATING PABAFFIN WAX. APPLICATION FILED AUG. 25, 1900.

999,628. 1 Patentd Aug. 1,1911.

' f? llllllllllllllllll j 5; llllllllllllllllll I Illlllllllllllllll v llllllllllllllllll !l|||||l|||||||||| diiiflfi'ih'h" 1 STATES PATENT @FFTIQ ANDREW'UAMPBELL, 0F CROCRANNOCH, RANGOON, BURlVlAI-I, INDIA, ASSIGNOR TO THE BURMAH OIL COIVIPANY, LIMITED, 0F GLASGOW SCOTLAND. v

APPARATUS FOR TREATING PAR-AFFIN-VVAX.

Specification of Letters Patent.

Patented Aug.1,1911.

Application filed August 25, 1909. Serial No. 514,638.

To all whom it may concern:

Be it known that I, ANDREW CAMPBELL,

works manager, asubject of the King of the United Kingdom of Great Britain and Ireland, and resldent of Crocrannoch, Royal;

Lakes, Rangoon, Burmah, India, have invented new and useful Improvements .in Apparatus for Treating Paraffinax, of which the following is a specification.

in apparatus for treating or purifying parai'lin wax, to facilitate and economize the working and minimize the original cost of the plant as used heretofore.

Heretofore the apparatus for the purpose consisted of sweating apparatus erected on a stationary foundation inside a brick or stone chamber, having a suitable roof and fitted 'for being heated by steam or hot water pipes, there being Within the chamber an erection comprising one or more vertical series of trays each series comprising nine or other convenient number of trays one over the other. Heretofore the operation of filling the said trays with melted paraflin wax or'scale, allowing it to congeal and then sweating it, was effected. in the said chamber; but in accordance with the present improvements the apparatus is mounted on a carriage having three or other v convenient number of sets of wheels running on rails so that the carriage may be removed from the brickwork heating chamber into an adjacent open cooling shed immediately after the sweating operation is completed. The apparatus is then recharged with parafiin scale and the scale allowed to congeal. It is then drawn back into the sweating chamber and the process repeated.

I prefer to employ an open shed at eitherat will.

The-apparatus may he traveled to and from the heating chamber by means of winches at each end of the rails which are extended through the heating chamber into the-open sheds at either side. In a case of an arrangement of a center heatingchanr her with open sheds at either side the operation' is as follows and is as shown in the drawings.

apparatus containing the trays (Z for the purpose of sweating the paraflin wax is mounted on a carriage D having three or This lnventlon relates to improvements.-

other convenient sets of wheels al running on rails (P. The apparatus or carriage can rying the trays is filled with the melted wax or scale in the open shed either B or C at the end of the brickwork heating chamber and'allowed to congeal. The doors of .the heating chamber A are then opened and the carriage carrying the trays is run into that" heating chamber; the apparatus being traveled to and from the heating chamber by means of the winches E Fig. 3 at each end of the rails which are extended through the heating chamber into the open sheds at either side. The doors of the heating chamber are now closed and the usual sweating operation effected, the liquids separated during that operation being run from the, trays to any suitable low level tank. After the sweating operation is ef-- fected the carriage is run back from the heating chamber A, into one of the open sheds and the wax allowed to cool and then removed. The carriage is now recharged in this open shed and run back again into the heating chamber for sweating.

By the aforesaid arrangement the temperature of the heating chamber is maintained at a temperature not below a certain minimum thereby economizing in steam heating power through obviating the alter-- nate cooling and heating of the said chamber. The improved arrangement largely increases the capacity of the apparatus, while eifecting economy in steam heating at the same time. The filling of the trays with the water for floating the scale, as usual, and the charging of the trays with the melted scale may be effected by the overhead flexible -1netallic tubings .F, F provided in hothof the outer open sheds,-' each tubing beingprovided with the'two cocks f f and f f connected with thewater supply and the melted scale supply; the end of the tubings F F being connected to the tubular columns Gr carried on the travel- .ing carriage D as shown at the left-hand side of Fig. l the columns being provided with the short branch pipes 9 provided v ith cocks, for supplying both water and scale to the trays, the tubings F F being disconnected from the column when the trays are filled and the carriage is ready for being traveled into the heating chamber A. There may be any convenient number of the aforesaid arrangements of heating chambers and cooling sheds in tandem-say six arrangements-placedside by side, one por tion of the next heating chamber A and either end cooling sheds, being shown in Fig. 3. In this case each length of rail has its own end winch. The chamber A may be heated by means of the steam or hot pipes a Fig.9. 7

The superposed trays d- Fig. 1 for containing the parafiin Wax may be of any convenient number-say nine in number-as shown more particularly in Fig. 1, and are of the usual rectangular shape being sup-.- ported one over the other from the upright supports (Z by means of the usual supporting cross bars or pipes below the trays.

Claims:

1. A truck for conveying paraffin Wax and like substance. to be treated having a plurality of trays arranged thereon in superposed relation, a vertical supply pipe disposed adjacent said trays, and a plurality of branch pipes leading from said supply pipe to said trays for distributing the mate ial thereto.

2. In a purifying apparatus, the combination with a plurality of treating chambers arranged in series, of a transporting vehicle therefor comprising a car, a plurality oftrays arranged on said car in superposed relation, a distributing pipe vertically dispos d adjacent one end of the trays and having delivery branch pipes extending therefrom into said trays, and a supply main in the end' chambers of the series adapted to be coupled with and deliver to said distributing pipe the material to be purified.

ANDREW CAMPBELL.

WVitnesses:

DAVID BURGESS MEIKLE, RICHARD GILLIES NEILSON. 

